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AssigneeAMO Development, LLC
InventorsMohammad Saidur Rahaman, Hong Fu, Roger W. Accurso, Zenon Witowski
Estimating the term…
An ophthalmic laser system uses a non-confocal configuration to determine a laser beam focus position relative to the patient interface (PI) surface. The system includes a light intensity detector with no confocal lens or pinhole between the detector and the objective lens. When the objective focuses the light to a target focus point inside the PI lens at a particular offset from its distal surface, the light signal at the detector peaks. The offset value is determined by fixed system parameters, and can also be empirically determined by directly measuring the PI lens surface by observing the effect of plasma formation at the glass surface. During ophthalmic procedures, the laser focus is first scanned insider the PI lens, and the target focus point location is determined from the peak of the detector signal. The known offset value is then added to obtain the location of the PI lens surface.
A method implemented in an ophthalmic laser system, the ophthalmic laser system comprising a laser source for generating a light beam, a moveable objective lens for focusing the light beam, a light intensity detector for detecting a light signal from the objective lens, and a controller, the method comprising:
A method implemented in an ophthalmic laser system, the ophthalmic laser system comprising a laser source, a moveable objective lens, and a light intensity detector for detecting a light signal from the objective lens, the method comprising:
Dependencies are inferred from the claim text.